Pull-chain electric switch



Aug. 19, 1924. 1,505,406

H. J. MOREY PULL CHAIN ELECTRIC SWITCH Filed July 23 1920 A TTORNEYS Patented Aug. 19, 1924.

UNITED STATES PATENT OFFICE.

HARRY J. MOREY, OF SYRACUSE, NEW YORK, ASSIGNOR TO PASS & SEYMOUR INC., 01'

SOLVAY, NEW YORK, A CORPORATION OF NEW YORK.

PULL-CHAIN ELECTRIC SWITCH.

Application filed July 23, 1920. Serial No. 398,500..

Tb all whom it may concern:

Be it known that I, HARRY J. MOREY, a citizen of'the United States, and a resident of Syracuse, in the county of Onondaga and 5 State of New York, have invented a certain new and useful Pull-Chain Electric Switch, of which the following is aspecification.

This invention relates to pull cord or chain electric switch mechanisms for lamp sockets and the like, and has for its object a particularly simple and eflicient means for attaching the pull cord orchainto the actuating member of the switch mechanism whereby the cord may be readily attached or detached if desired, but is securely held in turning the switch on or off and jumps back under the influence of the spring of the switch mechanism which spring is tensioned by the pull on the cord. The invention consists in the novel features and in the combinations and constructions hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanying drawings in which like characters designate corresponding parts in all the views.

Figure 1 is an elevation of a switch mechanism embodying my invention, the contiguous portion of the body of the lamp socket being also shown.

Figure 21s a detail view of the actuating member of the switch mechanism showing the transverse wall at one end of the channel thereof, in elevation.

Figure 3 is a similar view taken at a right an 1e to Fig. 2.

igures 4 and 5 are opposite elevations of the actuating member.

The lamp socket in which this switch mechanism is embodied'may beof any suit able form, size and construction, and as various forms are well known and common in'the art, it is thought that further description is unnecessary, it being sulficient to call attention to the fact that such mechanism includes a member movable about an axis as the usual oscillating member or segment to which the pull cord or chain is attached this member being movable in one direction by the pull of the cord against the action of a sprin which retracts the member. when the pul cord or chain is released.

The movement of the actuating member forwardly by the pull of the cord throws a svfivitch arm which turns the switch on and o In so far as my invention isconcerned, this pull chain electric switch mechanism comprises generally, an actuating member movable about an axis and formed with an angular slot one arm of which slot extends transversely of the member, and the other arm of which extends in a direction as circumferentially of said member, the latter arm being open at its end for receiving the pull cord or chain, and the cord having heads in the front and the rear of the portion of said member formed with the transverse arm of the slot, the slot being of less width than the diameter of the heads.

Preferably, the transverse portion or arm of the slot inclines outwardly toward the peripheral edge of the actuating member, and. the circumferential arm or portion extends in a direction opposite to the movement of said member when the cord is being pulled. The circumferential portion provides an entrance for the cord to the transverse portion of the slot.

1 designates the actuating member which is in the general formof a segment mounted to rock about the shaft 2 supported by the walls 3 of a lamp socket body, the movement of this member imparting, a snap action to the switch arm 4 which ooacts with contacts 5 carried by the lamp socket body.

The member 1 is formed with a circumferential channel 6 and a wall 7 extending transversely of the channel, the wall being formed with a slot 8 extending from the central portion thereof through one of the lateral edges of said wall adjacent one of the side walls of the channel 6. Said wall 7 is also formed at its outer edge with the angular flange or lip 9, one edge of which is spaced apart from one side of the channel forming an entrance slot 10 to the slot 8, this entrance to the slot providing the member 1 with an angular slot for receiving the pull cord. 8 is the arm of the slot extending transversely of the channel or of the member 1. and 10 is the arm of the slot extending circumferentially of the member 1. The flange or lip 9 is located farther away from the axis of the member than the edge of the member 1 so that the edge of the flange or lip 9 forming one side of the slot 10 is slightly above the opposing edge of the segment 1. This arrangement requires that the core asu.

having two of the beads 15, 16 which arevided by attaching an arc-shaped angular member 11 to one side of the member 1 near the margin thereof, the angular member being provided with prongs 12 extending through the segment or member 1 and which are clinched onto the opposite face thereof. The body of the segment is formed of insulation, and the angle member 10 of sheet metal.

14 is the pull 1" ad or chain which is here shown as a cord ith beads thereon, the cord extending through the transverse slot and of greater diameter than the width of the slot, arranged in front and rear of the transverse wall 7, these beads 15, 16 constituting heeds on opposite sides of the transverse wa l.

To attach the cord to the member 1 the portion of the cord between the two heads or beads 15, 16 is passed through the entrance to the transverse slot and then into the arm 8 thereof in the transversewall 7, it being necessary that the cord, in orderto pass into or out of the slot 10, assume an inclined position it could never assume naturally when being thrown backwardly by the actuating member 1 when the cord is released from the hand.

What I claim is:

1. In a pull cord electric switch mechanism, the combination of a member movable about an axis and having a channel for the cord and a wall extending transversely across the channel and formed with an anlar flange extending in a circumferential irection and also with an angular slot having an arm extending transversely of said wall and an arm extending in a direction lengthwise of said flange, one of the walls and the last mentioned arm of the slot being arranged nearer the. axis of said member than the opposite wall and a cord extend' through the transverse arm of the slot an having a head on one side of such transverse wall, such cord with the head thereon being placeable in the transverse arm of the slot through the circumferentially extending arm of the .slot, substantially as and for the purpose specified.

2. In a pull cord electric switch mechanism, the combination of a member movable about an axis and having a circumferential channel for the cord and a wall extending transversely of the channel, said wall havin an angular flange extending along an spaced apart from the edge of one of the walls of the channel and being of greater diameter than the edge of such wall of the channel thereby providing the arm of an angular slot which arm extends in a direction circumferentially of said member, and the transverse wall being also formed with an arm of the slot extending transversely thereof and opening at one end into the first mentioned arm, and a pull cord extending through the transverse arm of the slot and having heads in front and rear of said wall, the cord being placeable in the transverse .arm of the slot through the circumferentially extending arm of the slot, substantially as and for the purpose set forth.

In testimony whereof, I have hereunto signed my name, at Syracuse, in the county of Onondaga, and State of New York, this 19th day of July, 1920.

-HARRY J. MOREY. 

